From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 4 Aug 2002 20:31:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 4 Aug 2002 20:31:31 -0400 Received: from adsl-206-170-148-147.dsl.snfc21.pacbell.net ([206.170.148.147]:30989 "EHLO gw.goop.org") by vger.kernel.org with ESMTP id ; Sun, 4 Aug 2002 20:31:29 -0400 Subject: Re: 2.4.19: no DMA for IDE with Intel i845e From: Jeremy Fitzhardinge To: Alan Cox Cc: Linux Kernel List In-Reply-To: <1028512143.15495.45.camel@irongate.swansea.linux.org.uk> References: <1028505657.1545.3.camel@ixodes.goop.org> <1028512143.15495.45.camel@irongate.swansea.linux.org.uk> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 Date: 04 Aug 2002 17:35:03 -0700 Message-Id: <1028507703.1486.11.camel@ixodes.goop.org> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2002-08-04 at 18:49, Alan Cox wrote: On Mon, 2002-08-05 at 01:00, Jeremy Fitzhardinge wrote: > I just rebooted with 2.4.19, and I find that there's no DMA on my ide > interface, and it is refusing to honour 'hdparm -d1 /dev/hda'. I'm slowly working through fixing the new BIOS behaviour. For your case 2.4.19-ac1 ought to do the job. 2.4.19-ac2 fixed it but has some rather dramatic side effects. 2.4.19-ac3 is a more invasive but more correct proposed answer.. -ac1 seems to work, but I don't really understand how. I've looked through the drivers/ide and arch/i386 changes, but I don't see what makes the difference. J